Question

A water sample tested positive for lead with a concentration of 35 ppm. The density of the solution is 1.00 g/mL Which of the following statements is correct?
A. 100 g of the solution contains 35 g of lead
B. there are 35 mg of lead in 1.0 L of this solution
C. 100 g of the solution contains 35 mg of lead
D. the solution is 35% by mass of lead
E. Ethe molarity of the solution is 35 M

Answer 1

Answer: option B. there are 35 mg of lead in 1.0 L of this solution

Explanation:

1ppm = 1mg/L

Therefore 35ppm = 35mg/L

So, the solution contains 35mg of lead in 1L of the solution